CPT Page Title Help

Hi,

I have kinda a unique setup that I need for page title for my CPT. I currently have three levels. Grandparent > Parent > Child. Here is what im trying to do.

If the current page is three levels down the title needs to be pulled from the grandparent. If it’s two level down it needs to pull from the parent.

For example

Page 1 is working correctly. This page is pulling in the parent page title. Good stuff!

Page 2 is not. This page need to have the title of Water Environmental Resources because its three levels down. That would be the grandparent title.

Hope this makes sense. Here is my current code to change CPT title. I know its only pulling in parent pages im just not even sure where to start things on how i need them to work.

add_filter('avf_title_args', 'fix_single_post_title', 10, 2);
function fix_single_post_title($args,$id) {
    if ( is_singular('solutions') ) { // 24 being Page ID of the blog index
        $args['title'] = get_the_title( wp_get_post_parent_id( get_the_ID() ) );
    } elseif ( is_singular('contracts') ) {
    	$args['title'] = 'Contract Vehicles';
    } 

    return $args;
}